All anger is not sinful because some degree of it and on some occasions is inevitable. But it becomes sinful and contradicts the rule of Scripture when it is conceived upon slight and inadequate provocation and when it continues long.
My boyfriend keeps telling me I've got to own things. So first I bought this car. And then he told me I oughta get a house. 'Why a house?' 'Well you gotta have a place to park the car.'